Object collection class

collection.cfc

<cfcomponent output="false">
 <cffunction name="init" access="public" returntype="Collection" output="false">
  <cfscript>
   variables.container = arrayNew(1);
   variables.currentIndex = 0;
   return this;
  </cfscript>
 </cffunction>

 <cffunction name="add" access="public" output="false" returntype="void">
  <cfargument name="Object" type="Any" required="true" />
  <cfscript>
   arrayAppend(variables.container, arguments.object);
   variables.currentIndex = this.count();
  </cfscript>
 </cffunction>

 <cffunction name="clear" access="public" returntype="Void" output="false">
  <cfscript>
   variables.container = arrayNew(1);
   variables.currentIndex = this.count();
  </cfscript>
 </cffunction>
 
 <cffunction name="count" access="public" output="false" returntype="Numeric">
  <cfreturn arrayLen(variables.container) />
 </cffunction>

 
 <cffunction name="getAt" access="public" output="false" returntype="Any">
  <cfargument name="index" type="Numeric" required="true" />
  <cfreturn variables.container[arguments.index] />
 </cffunction>

 <cffunction name="getBy" access="public" output="false" returntype="Any">
  <cfargument name="property" type="String" required="true" />
  <cfargument name="value" type="Any" required="true" />
  <cfscript>
   var i = 0; 
   var o = '';
   for (i=1; i LTE count() ; i=i+1) { 
    o = variables.container[i];
    if(isObject(o) and o.hasProperty(arguments.property) and o.get(arguments.property) is arguments.value) {
     return variables.container[i];
    }
   } 
   return null; 
  </cfscript>
 </cffunction>
 
 <cffunction name="removeAt" access="public" output="false" returntype="boolean">
  <cfargument name="index" type="Numeric" required="true" />
  <cfscript>
   if(arguments.index LTE this.count()) {
    arrayDeleteAt(variables.container,arguments.index);
    return true;
   } else {
    return false;
   }
  </cfscript>
 </cffunction>

 <cffunction name="removeBy" access="public" output="false" returntype="boolean">
  <cfargument name="property" type="String" required="true" />
  <cfargument name="value" type="Any" required="true" />
  <cfscript>
   var i = 0; 
   var o = '';
   for (i=1; i LTE count() ; i=i+1) { 
    o = variables.container[i];
    if(isObject(o) and o.hasProperty(arguments.property) and o.get(arguments.property) is arguments.value) {
     arrayDeleteAt(variables.container,i);
     return true;
    }
   }
   return false;
  </cfscript>
 </cffunction>
</cfcomponent>